Home / 432,206.88-648,362.03-132,648.25

Finding the Fourth Proportional to 432,206.88, 648,362.03 and 132,648.25

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Solution

The fourth proportional to 432,206.88, 648,362.03 and 132,648.25 is: 198,988.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,206.88 : 648,362.03 = 132,648.25 : x
  2. Step 2: Convert to fraction form
    432,206.88/648,362.03 = 132,648.25/x
  3. Step 3: Cross multiply
    432,206.88x = 648,362.03 × 132,648.25
  4. Step 4: Simplify right side
    432,206.88x = 86,004,088,645.95
  5. Step 5: Solve for x
    x = 86,004,088,645.95/432,206.88
  6. Step 6: Final answer
    x = 198,988.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.